diff --git a/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/arrangements_2.cpp b/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/arrangements_2.cpp
index 79c6c74419c..819d642e4e9 100644
--- a/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/arrangements_2.cpp
+++ b/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/arrangements_2.cpp
@@ -44,8 +44,8 @@
 
 #include <CGAL/basic.h>
 
-#ifndef CGAL_ACK_CHECK_POLYNOMIALS_FOR_COPRIMALITY
-#define CGAL_ACK_CHECK_POLYNOMIALS_FOR_COPRIMALITY 0
+#ifndef CGAL_ACK_DONT_CHECK_POLYNOMIALS_FOR_COPRIMALITY
+#define CGAL_ACK_DONT_CHECK_POLYNOMIALS_FOR_COPRIMALITY 0
 #endif
 
 #ifndef CGAL_ACK_RESULTANT_FIRST_STRATEGY
diff --git a/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2.h b/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2.h
index 109c485f6aa..5e1cfe997f4 100755
--- a/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2.h
+++ b/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2.h
@@ -697,7 +697,7 @@ public:
             const Curve_analysis_2& ca2, OutputIterator oi1,
                 OutputIterator oi2, OutputIterator oib) const {
 
-#if !CGAL_ACK_CHECK_POLYNOMIALS_FOR_COPRIMALITY
+#if CGAL_ACK_DONT_CHECK_POLYNOMIALS_FOR_COPRIMALITY
         return false;  
 #else 
 
diff --git a/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Algebraic_curve_kernel_2.cpp b/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Algebraic_curve_kernel_2.cpp
index 7060c77498a..335ed372c91 100755
--- a/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Algebraic_curve_kernel_2.cpp
+++ b/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Algebraic_curve_kernel_2.cpp
@@ -30,8 +30,8 @@
 #include <CGAL/Benchmark/Benchmark.hpp>
 #include <CGAL/Benchmark/Option_parser.hpp>
 
-// required for Kernel_2::decompose tests
-#define CGAL_ACK_CHECK_POLYNOMIALS_FOR_COPRIMALITY 1
+// This is required for the test
+#define CGAL_ACK_DONT_CHECK_POLYNOMIALS_FOR_COPRIMALITY 0
 
 #include <CGAL/Arithmetic_kernel.h>
 #if CGAL_ACK_USE_EXACUS